<?php 
// http://tylersticka.com/2009/09/wcpdx09/
// Retrieve custom meta for this item
$fields = get_post_custom();
 
// If the gallery key exists, let's show some gallery functionality
if (isset($fields['gallery'])) {
 
	// Split the comma-separated gallery meta value into an array 
	$images = split(',',$fields['gallery'][0]);
 
	// Grab the current WordPress page and use it as the current
	// gallery item (defaults to 1)
	$current = ($paged == '') ? 1 : $paged;
 
	// Grab the current image from the array
	$image = $images[$current-1];
 
	// Display the current gallery image with intelligent alt text 
?>
<div id="gallery">
	<img src="<?php echo $image; ?>" alt="<?php echo "Image $current of ".count($images); ?>" />
	<?php 
	// Only show "next" and "back" controls if there's more 
	// than one gallery item
	if (count($images) > 1) {
	?>
	<ul>
		<?php if ($current > 1) { ?><li class="prev"><a href="<?php the_permalink() ?>page/<?php echo $current-1; ?>">Previous Image</a></li><?php } ?>
		<?php if ($current < count($images)) { ?><li class="next"><a href="<?php the_permalink() ?>page/<?php echo $current+1; ?>">Next Image</a></li><?php } ?>
	</ul>
	<?php } ?>
</div>
<?php } ?>